Rosa hybrida shrub plant named ‘AUScartoon’

ABSTRACT

A variety of rose plant of the shrub class, named ‘AUScartoon’. The ‘AUScartoon’ is a variety of a rose shrub having a healthy, branching growth with many large single yellow blooms held in open sprays that is free flowering with a light musk scent.

CROSS-REFERENCE TO RELATED APPLICATION

The present application claims priority to UK Varietal Plant Patent5/2139, filed Sep. 21, 2018.

Classification: The present invention relates to a new Rosa hybridashrub of the market class ‘English Rose’.

Variety denomination: The new plant has the varietal denomination‘AUScartoon’.

ORIGIN OF INVENTION

This invention relates to a new and distinct variety of shrub rose plantnamed ‘AUScartoon’, which was originated from the cross-pollination ofthe two ‘unnamed’ and unpatented seedlings of Rosa hybrida.

BACKGROUND OF THE INVENTION

The primary objective of this breeding was to produce a healthy roseshrub having a branching growth with many large single yellow bloomsheld in open sprays that is free flowering with a light musk scent.

SUMMARY OF THE INVENTION

Among the features which distinguish the new variety from otherspresently available and commercial rose cultivars known to the inventoris the following combination of characteristics: open sprays of large,single yellow blooms with a light musk scent, good disease resistanceand a rounded and branching growth.

Asexual reproduction of the new variety by budding as performed inAlbrighton, Britain shows that the foregoing and other distinguishingcharacteristics come true to form and are established and transmittedthrough succeeding asexual propagations. ‘AUScartoon’ may be asexuallypropagated by budding. The budding successfully occurred on anunpatented plant/rootstock Rosa dumetorum ‘Laxa’ for the observedplants.

COMPARISON WITH PARENTS

The maternal and paternal parents of ‘AUScartoon’ are two unnamedseedlings. The new rose may be distinguished from its maternal parent,by the following combination of characteristics: the maternal parent hasan apricot colored bloom with more petals, a semi-double bloom, andlarger growth than ‘AUScartoon’. The new rose may be distinguished fromits paternal parent, by the following combination of characteristics:the paternal parent has white, single blooms and a more upright growththan ‘AUScartoon’.

COMPARISON WITH THE CLOSEST COMMERCIALLY AVAILABLE CULTIVAR

The closest commercially available cultivar to the new variety is theunpatented R. Xanthina Var. Spontanea ‘Canary Bird’, which also has ayellow single bloom, although the flower is smaller. Specifically, theflowers of ‘Canary Bird are 5 cm across, whereas the flowers of‘AUScartoon’ are 9 cm in diameter. In addition, the foliage of ‘CanaryBird’ is matt, gray-green, and fern-like, whereas the foliage of‘AUScartoon’ is glossy, dark green and large.

BRIEF DESCRIPTION OF ILLUSTRATION

The accompanying photograph illustrates the new variety and shows theflowering thereof from bud to full bloom depicted in color as nearlycorrect as it is possible to make in a color illustration of thecharacter. Throughout this specification, color references and/or valuesare based upon The Colour Chart of The Royal Horticultural Society(2001) except where common terms of color definition are employed.

DESCRIPTION OF THE NEW VARIETY

Observations of budded ‘AUScartoon’ specimens were made at the nurseryin Albrighton, Wolverhampton, United Kingdom. The following descriptionis of 5 year-old rose plants of the new variety grown in a gardenenvironment in Albrighton, Britain in the month of June. Phenotypicexpression may vary with environmental, cultural and climaticconditions, as well as differences in conditions of light and soil.

-   Flower characteristics:    -   -   Blooming habit.—Recurrent. The number of blooms per plant            during the growing season is profuse, but there are too many            to count.        -   Bud.—Size: About 2.8 cm long and 1.3 cm in diameter when the            petals start to unfurl. Form: The bud form is elogated            pointed ovoid. Color: When sepals first divide, the bud            color is RHS 13B (yellow group). When half blown, the upper            sides of the petals are RHS 12A (yellow group), and the            lower sides of the petals RHS 13B (yellow group). Calyx:            Shape: opens to a star shape, with the sepals folding back            against the stems. Length: 2.9 cm. Diameter: 1.2 cm. Sepals:            Arrangement: Regularly arranged. Color: Upper Surface: RHS            194B (grayed-green group). Lower Surface: RHS 145A            (yellow-green group). Length: 2.9 cm. Width: 7 mm. Shape:            Lanceolate. Surface texture: Upper Surface: Downy. Lower            Surface: Smooth. Number: There are 3 normally appendaged            sepals, and 2 unappendaged sepals with glandular edges.            Sepal Extensions: Are strong. Receptacles: Color: RHS 146A            (yellow-green group). Shape: Apple. Size: Small, about 1 cm            long×0.6 cm wide. Surface: Smooth. Peduncle: Length: Short,            averaging about 5.5 cm. Surface: Smooth. Color: RHS 146C            (yellow-green group). Strength: Normal.        -   Blooms.—Size: Large, average open diameter is about 9 cm.            Borne: Several together approximately 8-10 blooms, the            inflorescence having a rounded shape. Stems: Strength:            Normal, average length is about 40 cm. Diameter: 5 mm. Form:            When first open, bloom is cupped. Permanence of bloom:            flattens. Flower Type: Single.        -   Petalage.—Number of petals under normal conditions: 5.            Color: The upper sides of the petals are RHS 10C (yellow            group). The reverse sides of the petals are RHS 10D (yellow            group). The base of the petals has a yellow spot RHS 9A            (yellow group) approximately 5 mm, although no discernible            yellow spot is present due to the yellow color of the petal.            Variegations: None. Discoloration: The general tonality at            the end of the first day is RHS 10C (yellow group), and at            the end of the third day is RHS 10D (yellow group).            Fragrance: Slight. Character of fragrance: Musk.        -   Petals.—Texture: Satiny. Size: Width: 3.8 cm. Length:            4.5 cm. Surface: Smooth. Shape: Obovate. Margin: Notched            with weak reflexing and weak undulation. Apex Shape:            Rounded. Base Shape: Obtuse. Form: Very slightly incurved.            Arrangement: Regular. Petaloids: Number: Almost none with            some blooms having one petaloid. Color: RHS 10A (yellow            group). Length: 2 cm. Width: 2 cm. Shape: Deformed petal.            Margin: Irregular. Persistence: Petals drop off cleanly            before drying. Lastingness: On the plant: Short about 3-4            days. As a cut flower: not tested.        -   Reproductive parts.—Stamens: Number: approximately 80.            Length: 7 mm & 14 mm (in equal measure). Anthers: Length:            1.5 mm. Color: RHS 17A (yellow-orange group). Arrangement:            Regular around styles. Filaments: Color: RHS 17A            (yellow-orange group). Length: approximately 5.5-6 mm &            11-13 mm (in equal measure). Pollen: Color: RHS 22A            (yellow-orange group). Amount: Scarce. Pistils: Number:            Approximately 15. Length: 4 mm. Styles: Color: RHS 60B            (red-purple group)+RHS 163B (grayed-orange group). Length:            7 mm. Stigmas: Color: RHS 22A (yellow-orange group). Length:            approximately 7 mm. Hips: NONE Observed.-   Plant characteristics:    -   -   Plant form.—Shrub.        -   Plant growth.—Vigorous.        -   Age to maturity.—2 years.        -   Mature plant.—Height: 1 m 40 cm. Width: 1 m 40 cm.        -   Rootstock.—Rosa dumetorum ‘Laxa’ for the observed plants.        -   Foliage.—Number: Leaflets on normal mid-stem leaves is: 5            (some 7 and some 3) (including terminal leaflet). Size:            Large, about 18 cm long×13 cm wide. Quantity: Normal. Number            of leaves per flowering stem is: 10. Color: New foliage:            Upper side: RHS 146B (yellow-green group). Lower side: RHS            146C (yellow-green group). Old foliage: Upper side: RHS 137A            (green group). Lower side: RHS 146B (yellow-green group).        -   Leaflets.—Size: About 6.3 cm long×3.4 cm wide. Shape:            Pointed oval. Base Shape: Rounded. Apex Shape: Acuminate.            Texture: Leathery. Glossiness: Strong. Edge: Serrated.            Serrations: Single. Petiole: Color: RHS 138A (green group)            upperside, with RHS 146A (yellow-green) underside. Length:            4.2 cm. Width: 1.5 mm. Surface Texture: Glandular. Petiole            Rachis: Color: RHS 138A (green group). Underside: with            prickles. Stipules: Length: 2.7 cm, glandular. Color: RHS            146C (yellow-green group). Auricle: Shape: Lanceolate.            Length: 6 mm. Width: 1 mm. Color: RHS 146C (yellow-green            group). Vein Color: Color: RHS 137A (green group). Venation            Pattern: Reticulate.        -   Wood.—New Wood: Color: RHS 178B (grayed-red group). Bark:            Smooth. Old Wood: Color: RHS 146B (yellow-green group).            Bark: Smooth.        -   Branching habit.—Number: 14. Dimensions: Length: 60 cm.            Diameter: 1 cm.        -   Stems.—Mature Stem: Length: 80 cm. Diameter: 1 cm. Internode            Distance: 11 cm. The above measurements are all variable,            depending on growing conditions in a season. Stem Pubescence            Present: No.        -   Prickles.—Quantity: On main canes from base: Ordinary.            Number per stem length: 12 per 20 cm. On laterals from main            canes: Ordinary. Number per stem length: 12 per 20 cm mainly            in bottom third of stem. Form: Deep concave. Length: 6 mm.            Color When Young: RHS 199B (grayed-brown group). Color When            Mature: RHS 199B (grayed-brown group).        -   Small prickles.—Quantity: Main stalk: None.        -   Disease resistance.—Powdery Mildew. (Podosphaera pannosa):            Resistant. Downy Mildew. (Peronospora species): Resistant.            Blackspot. (Diplocarpon rosae): Resistant. Rust.            (Phragmidium tuberculatum): Resistant.        -   Pest resistance.—Not tested.        -   Winter hardiness.—Not tested.        -   Growing conditions.—Normal garden conditions.

What is claimed is:
 1. A new and distinct variety of rose plant of theshrub class, substantially as herein shown and described.